fix: 登录后保存role，API请求携带X-User-Role头

src/api/index.js

@@ -6,6 +6,7 @@ const request = (url, method, query = {}, data = {}) => {
   const token = uni.getStorageSync('token')
   const userId = uni.getStorageSync('userId') || ''
   const username = uni.getStorageSync('username') || ''
+  const role = uni.getStorageSync('role') || ''
   
   // 特殊情况：入库和库存调整需要 form-urlencoded 格式
   const useFormData = (url.includes('/stock/in') || url.includes('/stock/adjust')) && Object.keys(data).length > 0
@@ -27,7 +28,8 @@ const request = (url, method, query = {}, data = {}) => {
         'Content-Type': useFormData ? 'application/x-www-form-urlencoded' : 'application/json',
         'Authorization': token ? `Bearer ${token}` : '',
         'X-User-Id': userId,
-        'X-Username': username
+        'X-Username': username,
+        'X-User-Role': role
       },
       success: (res) => {
         if (res.data.code === 0) {